Someone at Largent Video will know what you need. As far as the wall wart is concerned it is a matter of inserting relays in the path of the circuit. To this date I have not had a need to do this.

Oh, and one more: if the 5v supply in the switcher is burnt out, can one still apply external power with a wall wart? How would one go about this? Thanks!

Wow. Great info. Thanks! Do you have a part number for the connectors? Cheers, Chad

I believe the connectors are the same for the 3/4k. I got my connectors from Largent Video (largentvideo.com). I paid at the time $14.00 each plus shipping. I got 4 of them. the wiring of them is as follows. Take 1 of the connectors and label it "Top GPI OUT" having the wire tightening screws on the bottom and looking from left to right pins will go 1,2,3,4,5,6,7,8,9,10 Connect pin 10 to 8 to 6 to 4 to 2 by looping with one wire so that electroniclly they are the same connection Set aside Take the 2nd connector and label it "Bottom GPI IN" with one wire connect 1,3,5,7,9, by looping with one wire so that electroniclly they are the same connection with 4 seperate wires connect the following Top connector pin 3 to bottom connector pin 2 Top connector pin 5 to bottom connector pin 4 Top connector pin 7 to bottom connector pin 6 Top connector pin 9 to bottom connector pin 8 when finished you will find top connector pin 1 left empty and bottom connector 10 left empty that is the way it should be Repeat all the above with a second set of connectors so that you will have access to all 8 gpi's Have the EIC plug the top connector to the top, and the bottom connector to the bottom Should he do the reverse.... no damage will be done...... it just that the GPI's won't work. Don't forget to light the GPI button on the splash plate to enguage the GPI's Should any or all not work after this.... most likely the 5 volt power supply of the Grassvalley is already burned out. As a side note if you do alot of clean feeds and want tally for camera's that are on the clean feed ME........ (you have to lose one of the loopbacks for this) connect pins 2 and 3 of the "bottom GPI in" connector together and program the tally of the aux bus or ME in the GPI#1 in programing in configure. If anybody has a lead on these connector IE get them locally less price.... please pass this info along

[quote="chadrm"]Cool. Thanks. Any ideas on the 3/4K connections anyone? Bare wire, or connectors that I could get at an electronics store?[/quote] You need to use the connectors that actually plug into the 4K's GPI area on the frame. They are little green plastic things that slide into the frame, the plastic things can be removed and you can wire it up away from the frame. I think what some people do is order the part from GVG, wire it up and carry it with them, and then if the truck doesn't have loopbacks, they swap out their connectors with the trucks. The voltage is on the 4K frame but but needs to be added I think to every contact closure. In theory on a Kalypso with macros you really shouldn't need them, since macros can be put in a timeline. As Rick mentioned there is atleast one or two other posts from way back that talk about what part number and such I think Bill

Cool. Thanks. Any ideas on the 3/4K connections anyone? Bare wire, or connectors that I could get at an electronics store?

[quote="chadrm"]It's the Kalypso that had to have its GPI's dried out to comply with some newer safety regulation. Correct? Thanks, Chad[/quote] Chad I believe you are correct. I seem to remember the last time I did this on a Kalypso we had to add the voltage. I don't use the loop back too much because I'm constantly moving from truck to truck and set up time is limited although it would be nice to have on most shows. It's like musical chairs sometimes! Good luck, I know there was another posting here about it sometime ago and maybe you can do a search for it. Take care ... Rick.

Thanks, Rick. This *is* the post I was talking about. Though, I'm hoping to find the specs on the connector on the back of the 3000 and 4000 frames. I can't find a book out on the web, etc. I'm forgetting whether it's a D connector that attaches to all of the GPI in's / outs's, or if it's a series of little screw or spring-held clasps that you put bare wires into. Also, last time I did this, I thought that you only had to wire the in's to out's one-to-one with no additional voltage. I thought the 3/4K had the neccessary voltage on the connectors. It's the Kalypso that had to have its GPI's dried out to comply with some newer safety regulation. Correct? Thanks, Chad

Here is tone of the links your looking for... hope it helps in what your looking for.